Billing Senior Associate

Job Description Grant Thornton is seeking a Billing Senior Associate to join the team in Downers Grove, IL. We are seeking a detail-oriented and customer-focused Senior Billing Processor with SAP S/4HANA Public Cloud experience to support the timely and accurate processing of client invoices and billing transactions. This role manages billing activities from data review through invoice distribution, reconciliation, and issue resolution. The Senior Billing Processor works with project teams, Finance, Collections, Customer Service, and other stakeholders to ensure invoices meet contractual requirements, financial policies, and internal controls. Grant Thornton is seeking a Billing Senior Associate to join the team in Downers Grove, IL. We are seeking a detail-oriented and customer-focused Senior Billing Processor with SAP S/4HANA Public Cloud experience to support the timely and accurate processing of client invoices and billing transactions. Key Responsibilities Billing Processing and Invoice Generation Process and distribute customer invoices in accordance with billing schedules, contractual requirements, and company policies. Review billable activities, expenses, adjustments, and supporting data for completeness and accuracy. Generate and monitor invoices using SAP S/4HANA Public Cloud. Maintain billing records and supporting documentation. SAP S/4HANA Billing Operations Execute billing and invoicing activities in SAP S/4HANA Public Cloud. Review customer, contract, rate, project, and financial master data to support accurate billing. Monitor billing blocks, exceptions, and workflow approvals, coordinating resolution as needed. Support system testing and validation of billing processes during implementations, enhancements, and upgrades. Billing Analysis and Reconciliation Investigate billing discrepancies, processing errors, customer inquiries, and invoicing exceptions. Reconcile billing records with project data and financial reports. Analyze exceptions, identify root causes, and coordinate corrective action with project managers, Finance teams, and business stakeholders. Support month-end and year-end billing activities. Compliance and Controls Review billing transactions for compliance with contract terms, customer requirements, financial policies, internal controls, and company procedures. Maintain accurate documentation for invoices, billing transactions, and adjustments. Support internal and external audit requests related to billing activities. Customer and Stakeholder Support Respond to billing inquiries from internal and external customers. Partner with project teams, Finance, Collections, and Customer Service to resolve billing issues. Communicate billing status, risks, and exceptions to relevant stakeholders in a timely manner. Contribute to process improvements that enhance billing efficiency, accuracy, and control effectiveness. Required Qualifications Associate’s or bachelor’s degree in Accounting, Finance, Business Administration, or a related field. Three or more years of experience in billing, invoicing, accounts receivable, or financial transaction processing. Experience with SAP S/4HANA Public Cloud or SAP ERP billing processes. Strong understanding of billing controls, invoice generation, and financial reconciliation. Proficiency with Microsoft Excel and reporting tools. Strong analytical, organizational, and problem-solving skills. Demonstrated attention to detail and ability to manage multiple priorities. Preferred Qualifications Experience in professional services, consulting, or project-based billing environments. Knowledge of project accounting, time-and-expense billing, and revenue recognition concepts. Experience supporting ERP implementations or system conversions. Familiarity with customer master data, contract management, and billing workflows. Understanding of internal controls, audit requirements, and compliance standards. About Us At Grant Thornton, we believe in making business more personal and building trust into every result – for our clients and you. Here, we go beyond your expectations of a career in professional services by offering a career path with more: more opportunity, more flexibility, and more support. It’s what makes us different, and we think being different makes us better. In the U.S., Grant Thornton delivers professional services through two specialized entities: Grant Thornton LLP, a licensed, certified public accounting (CPA) firm that provides audit and assurance services ― and Grant Thornton Advisors LLC (not a licensed CPA firm), which exclusively provides non-attest offerings, including tax and advisory services. In 2025, Grant Thornton formed a multinational, multidisciplinary platform with Grant Thornton Ireland. The platform offers a premier Trans‑Atlantic advisory and tax practice, as well as independent American and Irish audit practices. With $2.7 billion in revenues and more than 50 offices spanning the U.S., Ireland and other territories, the platform delivers a singular client experience that includes enhanced solutions and capabilities, backed by powerful technologies and a roster of 12,000 quality‑driven professionals enjoying exceptional career‑growth opportunities and a distinctive cross‑border culture. Grant Thornton is part of the Grant Thornton International Limited network, which provides access to its member firms in more than 150 global markets. About The Team The team you’re about to join is ready to help you thrive. Here’s how: Whether it's your work location, weekly schedule, or flex time off, we empower you with the options to work the way that it best serves your clients and your life. Consistent with the firm's hybrid work model, this position will require in-person attendance at least three days per week, either at a GT office or client site. Here, you are supported to prioritize your overall well-being through work‑life integration options that work best for you and those in your household. We understand that your needs, responsibilities and experiences are different — and we think that’s a good thing. That’s why we support you with personalized and comprehensive benefits that recognize and empower all the identities, roles and aspirations that make you, well, you. See how at When it comes to inclusion, we are committed to doing more than checking boxes. Explore all the ways we’re taking action for diversity, equity & inclusion at Here’s what you can expect next: If you apply and are selected to interview, a Grant Thornton team member will reach out to you to schedule a time to connect. We encourage you to also check out other roles that may be a good fit for you or get to know us a little bit better at Benefits: We understand that your needs, responsibilities and experiences are different, and we think that’s a good thing. That’s why we support you with personalized and comprehensive benefits that recognize and empower all the identities, roles and aspirations that make you, well, you. For an overview of our benefit offerings, please visit: Benefits for internship positions: Grant Thornton interns are eligible to participate in the firm’s medical, dental and vision insurance programs and the firm’s employee assistance program. Interns also receive a minimum of 72 hours of paid sick leave and are paid for firm holidays that fall within their internship period. Benefits for seasonal employee positions: Grant Thornton seasonal employees are eligible to participate in the firm’s medical, dental and vision insurance programs and the firm’s employee assistance program. Seasonal employees may also be eligible to participate in the firm’s 401(k) savings plan and employee retirement plan in accordance with applicable plan terms and eligibility requirements. Seasonal employees receive a minimum of 72 hours of paid sick leave. Grant Thornton employees may be eligible for a discretionary, annual bonus based on individual and firm performance, subject to the terms, conditions and eligibility criteria of the applicable bonus plan or program. Interns and seasonal employees are not eligible for bonus compensation. Additional Details: It is the policy of Grant Thornton to promote equal employment opportunities. All personnel decisions (including, but not limited to, recruiting, hiring, training, working conditions, promotion, transfer, compensation, benefits, evaluations, and termination) are made without regard to race, color, religion, national origin, sex, age, marital or civil union status, pregnancy or pregnancy‑related condition, sexual orientation, gender identity or expression, citizenship status, veteran status, disability, handicap, genetic predisposition or any other characteristic protected by applicable federal, state, or local law. Consistent with the Americans with Disabilities Act (ADA) and applicable state and local laws, it is the policy of Grant Thornton to provide reasonable accommodation when requested by a qualified applicant or employee with a disability, unless such accommodation would cause an undue hardship. The policy regarding requests for reasonable accommodation applies to all aspects of employment, including the application process. To make an accommodation request, please contact View email address on click.appcast.io. For Los Angeles Applicants only: We will consider for employment all qualified Applicants, including those with Criminal Histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance. For Massachusetts Applicants only: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. Grant Thornton does not require or administer lie detector tests as a condition of employment or continued employment. #J-18808-Ljbffr Grant Thornton